Hello there,
I have been writing bots & scrapers for quite a while for my clients.
Currently I am doing a scraping job for another American client.
Then I thought I could also help you with your project.
I have already written an Instagram bot in the past, which likes medias, follows & unfollows people based on the tags you specify. I can show you my work if you would like. It is already on Github though.
Do not hesitate to contact me for further details.
Cheers,
Burak